posted on Jul, 6 2009 @ 01:50 PM
Originally posted by Jigore
What is that ''triangular'' shape tower? And why does it need to rotate?
It's an RCS tower, which is used to test the Radar Cross Section of aircraft. Northrop Grumman has one at their stealth development center.
An aircraft model is built (like the B-2) and a circular mounting bracket is placed in the bottom of the aircraft at the center of gravity. Then they
lift it up on top of the RCS tower (Northrop's looks like a big thorn-shaped barb that gets skinnier as you go higher, I will try to find a
Anyway, once they put the aircraft up there and bolt it in to the mount they can fire radar at it at a bunch of different angles and see what gets
bounced back. Then they can work on the model and re-test it, etc.
The one at Northrop used the ring mount so the aircraft could be spun around in different directions because the radar was fixed. I wonder if the
Area 51 tower spins on it's own from remote control? That would be easier than trying to manually turn the aircraft.